Переведите в passive voice: the british have traditionally based their food on beef , lamb,pork,chicken and fish.

Their food has traditionally been based on beef,lamb,pork,chicken and fish by the British.

The British  food  traditionally has been   based  on beef , lamb,pork,chicken and fish. - Британская еда  традиционно основана на говядине, баранине, свинине, курице и рыбе.